Wrench.



J. A. LAUER & A; A. McCONNELL.

WRENCH.

APPLICATION FILED OCT. 3. 1914.

Patented B'lar. 20,1917.

75y 51. f x a Z Qm/mw fl/cia/vwl carries snares raranr or ies.

JAMES A. LAUER AND ALEXANDER A. MCCONNELL, OF PATTON, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent.

Patented Mar. 2%}, 1917.

Application filed Gctober 3, 1914. Serial No. 864,910.

To all whom it may concern:

Be it known that we, JAMEs A. LAU'ER and ALEXANDER A. MGCONNELL, citizens of the United States, residing at Patton, in the county of Cambria and State of Pennsylvania, have invented certain new and use ful Improvements in Wrenches, of which the following is a specification.

Our invention relates to new and useful improvements in a wrench, and the primary object of the invention is a wrench so constructed that it may be easily adjusted.

A further object of the invention is the provision of a wrench of such construction that when adjusted it will be securely held in its adjusted position.

\Vith these and other objects in view the invention consists in the novel details of construction and arrangement of parts which will be more clearly understood from the following description and drawings, in which,

Figure l is a view in side elevation.

Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3- is a vertical section on the line.

33 of Fig. 2.

Fig. 4; is a section on the line 44 of Fig. 3, and

Fig. 5 is a detail of the spring catch.

In the drawings, the numeral 1 indicates a handle to which is secured the shank 2 of a stationary jaw 3 and the inner face of the shank 2 is provided with a longitudinal tongue 4 having the teeth 5 cut therefrom. The sliding jaw is indicated, at 6, and has a longitudinal groove formed along the inner edge adapted to receive the tongue 4 and teeth 5 of the stationary jaw. The sliding jaw has a shank 7 formed thereon, and said shank enters a socket formed ir the handle 1 and is provided with a longitudinal groove registering with the groove in the sliding jaw for receiving the tongue 4 and teeth 5 on the shank of the stationary aw.

The sliding jaw is provided on the inner face with a recess 8 in which is secured a spring catch member 9 having the extension 10 substantially at right angles thereto and adapted to engage the teeth 5 on the shank of the stationary jaw. This spring catch member 9 is also provided with a proters Patent is:

around the shank :2 of the stationary jaw.

This metal band is provided on one face with an opening 1% through which the projection 11 of the spring catch member 9 extends.

Having described the detailed construction of our device it is thought that the operation and advantages will be clearly understood. W hen it is desired to adjust the sliding jaw it is only necessary to engage the projection 11 on the spring catch memher and by raising upon the same the right angle extension 10 is disengaged from the teeth 5 and the sliding jaw may be adjusted to the desired position. The spring catch is then released and again engages the teeth and holds the sliding jaw securely in position. By providing the tongue 4 on the stationary jaw and entering a groove in the sliding jaw we guard against side movement and at the same time the tongue acts as a guide for the sliding jaw'.

Having fully described the invention what we claim as new and desire to secure by Let- In a wrench, a fixed and a movable shank, the said movable shank being equal in width with said fixed shank and being capable of sliding longitudinally thereon, the adjacent faces of said fixed and movable shanks being engaged throughout the length of the latter, jaws at the outer ends of said shanks, a central longitudinally disposed rib on the inner face of said fixed shank, the said rib being rectangular in cross section, the said movable shank being provided on its under face with a central longitudinally disposed groove of the same size and shape as said rib and being adapted to receive the latter, teeth on said rib, the said movable shankbeing recessed upon its under face adjacent its jaw end, the said recess opening into said groove, a spring secured at one end to said movable shank within said recess and normally engaging with said teeth, a band secured to said movable shank and snugly holding the latter in engagement with said fixed shank, the said band having an aperture in one side, a lateral projection on the In testimony whereof We aflix our signafree end of said spring extending through tures in presence of two Witnesses.

said aperture, and a handle comprising a JAMES A. LAUER.

strap member secured'to said fixed shank ALEXANDER A. MOCONNELL. adjacent one end and inclosing said movable Witnesses:

shank to hold the latter in to close engage- VICTOR LAUER,

ment with the former. FRANK BARNWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.-

Washington, D. C. 

